Gage.



GEORGE M. ROTH, OF NEW YORK, N. Y.

GAGE] Specification of Letters Patent.

Patented Dec. 8, 1908.

Application filed. September 6, 1907. Serial No. 391,602.

To all whom it may concern:

Be it known that I, GEORGE M. ROTH, of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Gages; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to an improvement in gages,the object being to provide a gage having improved means for accurately and quickly adjusting the head carrying the scriber, and it consists in the parts and combinations of parts as will be more fully described and pointed out in the claims.

In the accompanying drawings, Figure 1 is a View in side elevation of my improved gage. Fig. 2 is a front view. Fig. 3 is a view of the head, the parts being detached and enlarged. Fig. 4 is an enlarged view in section through the head and journal of spring standard on which the head is mounted. Fig. 5 is an enlarged transverse sectional view illustrating the connection of the post 3 with the base; and Figs. 6 and 7 are views illustrating a modification.

The base 1 is preferably rectangular in shape and recessed on its under surface so as to rest marginally by its lower edges upon any flat surface. This base is provided on its upper surface at a point slightly to one side of its longitudinal center with the upwardly projecting parallel brackets 2 and 2, between which is pivotally mounted the post 3 carrying the flat spring metal standard 4.

The standard 4 snugly fits between the brackets 2 and 2 and is mounted on a screw 5 which passes loosely through bracket 2 and post, and is screwed into the bracket 2 a shoulder 6 on the head of screw 5 bearing against the bracket 2. The fit between the brackets and post is a close one, and the brackets have sufficient spring to permit them, when the screw 5 is screwed home, to engage the sides of the post 3,

and hold the same against movement. this construction by simply loosening up screw 5 the post may be adjusted to any de sired position and having been properly positioned may be secured against movement.

The base 1 is slotted as at 7 from one end to a point between, and if necessary beyond the brackets 2, so as to permit the free end of the post 3 and spring standard carried thereby to be turned to a positionbelow the base, and in the opposite direction it can be turned to a position slightly below the horizontal.

The post 3 carries the spring standard and a thumb screw 8. The spring standard is preferably made of flat spring metal, thicker at its ends than at a point intermediate its ends, and is secured at its lower end to the flat face 9 of post 3 by screws 10. The spring standard normally rests against the adjacent flush face of the post, and projects above the latter, and terminates in an enlarged rounded neck 11 carrying the integral cylindrical pin 12 on which the head 13 is mounted.

The thumb screw 8 is mounted in a threaded opening in the post 3 near the free end of the latter, and bears at its free end against the adjacent face of the spring standard 4 near the upper end of the latter, and operates to move the upper end of the standard away from the post, and hold it in such adjusted position.

The head is composed of a, screw 14 the head 15 of which is provided withlan opening slightly greater than the diameter of the pin 12, two clamping jaws 16, a thumb nut 17, and a cap 18. The clamping jaws 16 are mounted on the screw 14 next to the head 15 of the latter, and are held thereon by the nut 17 which is screwed into the threaded end of the nut. The cap 18 covers the head 15 of the screw 14 and is provided with an opening for the passage of the pin 12 on standard 4. When the parts constituting the head 13 are assembled on the pin 12, the in nor end of cap 18 rests in contact with, and forms an abutment for the adjacent clamping jaw 16, hence it will be seen that when the thumb nut is screwed home, it through the clamping aws 16 pushes against the cap 18 and pulls on the head 15 of the screw 14 thus clamping head 13 firmly to the pin 12. By loosening up slightly on the nut 17,'the head 13 will be released from the pin 12 sufiiciently to be turned for adjustment, and by further loosening the nut the clan'iping jaws will be released sufficiently to permit of the release of the scriber 19 which latter rests within grooves formed in the adjacent faces of the aws 16. This scriber is of the well known construction consisting of a steel rod pointed at both ends, and having one end straight and the other curved, the straight end being used to mark side Work and the curved end to mark underneath and over work.

By means of the spring standard and the swiveled head I am enabled to readily and quickly secure the most delicate adjustment of the scriber to the work, and after the parts have been once adjusted they remain so until readjusted by the positive movements of the screws or nuts. The post 3 can be adjusted to any position within approximately a radius of two hundred and seventy degrees, while the head 13 can be completely rotated on the pin 12 and the clamping jaws 16 completely rotated on screw 14:.

In the construction shown in Fig. 6, instead of mounting the post 8 between brackets 2 and 2 I have secured a standard 20 between the brackets, by screw 5, This standard has the same range of adjustment as the post 3 has in the other-construction and carries the two part bearing 21 on which the post 3 is mounted. This bearing comprises a screw 22 the head of which is enlarged and provided with an opening for the passage of standard 20, the standard fitting snugly in the opening. Covering and inclosing the head of screw 22 is a cylindrical cap 23 closed at its outer end and provided with an opening alining with the opening in the head of the screw for the passage of the standard 20. The post 3 is mounted on the screw and bears against the inner end of the cap, hence when the nut 22 is screwed onto the screw it tends to draw the latter toward the nut, while the pressure of the post is against the cap 23 in the opposite direction thus clamping the bearing 21 on the standard 20. The post, spring standard and the scriber thereon are the same as in the construction shown in Fig. 1.

I prefer to make the post 20 in sections, the lower section being comparatively short and provided with a threaded recess to receive the threaded end of the upper section, and to facilitate the removal and attachment of the upper section of the post I have provided the latter with flattened sections near its lower end. By making the post in sections, I can use upper sections of any length thus increasing the capacity of the gage.

In the construction shown in Fig. 5 the base is slotted longitudinally as shown by dotted lines which adapts it for use on or against circular work.

In the construction shown in Fig. 6, the spring standard may be adjusted high or low and rotated vertically and horizontally 7 while the scriber head has the same move ments, thus making it a universal gage, for all surface work.

It IS evident that changes in the construction and relative arrangement of the several parts might be made without avoiding my invention and hence I would have it understood that I do not restrict myself to the particular construction and arrangement of parts shown and described, but,

Having fully described my invention what I claim as new and desire to secure by Letters-Patent, is

1. In a surface gage, the combination with a hinged post, of means for securing said post at any desired. adjustment, a standard secured to the post, means for adjusting the standard laterally relatively to the post and a head adjustably mounted on the laterally adjustable standard and carrying a scrib'er.

2.- In a surface gage, the combination with a hinged post and means for clamping the post in any of its positions, of a spring standard secured to the post, means for adjusting the standard laterally relatively to the post, and a head adjustably mounted on the standard and carrying a scriber.

3. The combination with a base slotted at one end and brackets on said base on opposite sides of said slot, of a post, means for clamping the post to the brackets at any desired adjustment, a spring standard carried by the post, means for adjusting the standard relatively to the post and a scriber carrying head adjustably secured to the standard.

4. The combination with a base plate, a post adjustably secured thereto, a spring standard secured to the post and provided at its free end with a pin, and means for adjusting the standard relatively to the post, of a head mounted on said pin and consisting of a screw, the head of which is provided with a hole through same, two clamping jaws loosely mounted on said screw, a nut on said screw, and a cap fitting over the head of the screw and bearing against a clamping jaw, and provided with a hole for the passage of the pin.

5. The combination with a base plate having a slot therein, a post adjustably secured to said plate, a spring standard secured to the post and means for adjusting the standard relatively to the post, of a head mounted on said pin and consisting of a screw the head of which is provided with a hole through same, two Clamping jaws specification in the presence of two subscribloosely mounted on said screw, a nut on said screw, and a cap fitting over the head of the screw and bearing against a clamping jaw, and provided with a hole for the passage of the pin. I

In testimony whereof, I have signed this ing witnesses.

GEORGE M. ROTH.

Witnesses SAM LOUISSON, PETER BIEDERMAN. 

